Method of and machine for treating the margins of sheet-metal vessels



( -J 2 Sheets-Sheet 1,

0. MLBROWN & E. P. HOLDEN.

METHOD OF AND MACHINE FOR TREATING THE MARGINS OF SHEET METAL VESSELS. j

No. 479,181; Patented July 19, 1892.

mu.- llllll n 2 Sheets-Sheet 2'. EN.

(No Model.)

0. M. BROWN & E; P. HOLD METHOD OF AND MACHINE FOR TREATING THE M ARGINS 0F SHEET METAL VESSELS.'

d 6 I D u m & %m P w w v f 1 I I F w M v v M u l 0 2 f N 1b M 6 UNITED STATE PATENT OFFIC CHARLES 1n. BROWN AND EDWARD PJHOLDEN, or ntense, ILLINOIS.

METHOD OF AND MACHlNE FOR TREATING THE MARGINS 0F SHEET-METAL vEss Eis.

SPECIFICATION tbrming' part of Letters me No. 479,181, dated July 19, 1892. Application filed Il'ovember 24, 1.891. Serial'No. 412,902- (No model.)

To all whom it may concern.-

Be'it known that we, CHARLES and EDWARD P. HOLDEN, citizens of the United States, residing at Chicago, in county of Cook and State of Illinois, have invented certain new and useful Improvements ,in the Method of and MflGhlDBSgfOI' Treating the Margins of Sheet-Metal Vessels and other Articles, of which the following is aspecification. 1

The present invention relates to the method of and also to the machines for wiring, false-wiring, and otherwise treating the margins of sheet-metal vessels and other articles. 'Heretofore these operations have been performed by forcing against the margin of the article a die having in its face an annular groove of curved cross-section that curls the metal either inward or outward, as may be desired, the die and article being at all times during the operation in I v other throughout their entire circumference, or else the periphery of a roller has been brought in contact with the margin of the article and the article revolved to bringall parts of its circumference under the action of the roller. Without discussing the merits M. BROWN and demeritsnf these old methods and of the machines used in carrying them out, we will state simply that the object of our presentinvention isto so improve both method and machine that better results may be obtained. To this end we use a tool consisting of a disk having a working surface'on one of its flat sides, (as distinguished from its periphery,)

. and we present the working surface of the tool and the margin of the article to each other in planes that converge, so that only a small portion of the circumference of the article can have contact with the tool at any one time, and we rotate them so as to bring all parts of the circumference of the articleuuder. the action of the tool. 1

Our invention consists incertain features of novelty that are particularly pointed out in the claims hereinafter; and in V may be fully. understood we will describe it with reference to the accompanying drawings, which are made apart f this speci i tion, and in which r h Figure 1 is a side view of a machine embodying our invention, some of the parts hethe contact with each order that it the arm 6.

ing shown in section and others in elevation. This figure shows the machine provided with a chuck for holding articles having conical bodies and atool for false-wiring. Figs. 2 and 3 are respectively a horizontal and a vertical section thereof, the cuttinglanes being indicated by the lines 2 2 and 3 3, respectively. Fig. 4 is a-view similar to Fig. 1, the machine beipg here shown as provided with a chuck for holding a cylindrical article. Fig. 5 is a sectional elevation of a chuck'and tool for wiringa vessel having a conical body. Figs. (Sand 7 are sections of fragments of sheetmetal articles the margins of which have been false-wired, and Fig. 8 is a section of a fragment of an article the margin of whichhas been wired.

he'vertical post or'colnmn for supporting the working parts of the machine is shown at 1; Its front side is squared off and provided with a T-slot, in which fits a bolt 2, that passes through the arm 3 of a bracket and receives a'nut 4,whereby the bracket may be clamped to the column at any desired height. The bracket is held against turning upon the bolt by means of vertical flanges-5 on the arm 3,that bear against the sides of the column; The other arm 6 of the bracket is provided with a ho riaontal slot 7, through which passes a heavy bolt 8, that passes, also, through a plate 9 and is screwed into a plate 10. By means of a nut '11 on the outer end of the bolt-the plates 9 and 10 .may be securely clamped to the arm 6 of the'bracket, the slot 7 enabling their adjustment toward and} from the column 1. Before tightening the until the plate 10 may. be adjusted to the required position-that is,it may be placed in the vertical position shown by Fig. 1, or

by .Fig. l. The plate Qfis confined to a strictly horizontal movement by means of flanges 12, which embrace thetop and bottom edgesof Said'plate is also provided at one of its lower cornerswith aprojectidn 13,perforatcd for the passage of the fulcrum-pin 14 of a lever 15, one end of which is provided with an anti-friction roller 16, while the other such parts are common in machines of many it may be placed atj'an'y desired 5 'inclination, it being shown at an inclination end is connected with a foot-treadle by means ,1 of a rod17. Thetreadle and the foot of the column or pedestal are not shown, because i kinds and can be easil skilled mechanic witho drawing and s 18 is a slide consisting, of metal provided with 19, corresponding in cros section of the platelO, groove and constitute the slide may move 11 is provided-wit .terbored at 21 for th which is screwed int disk is swiveled to s may turn upon the other. strengthen this connection an swivel-screw 22 l 1 8 is provided tap by drawi end of t] -moved u and all p y constructed by any id of a minute ,Th pecification.

preferably, of a disk an"underc ut groove s-section to the crosswhich latter fits in saids aiguide upon which) p and down. Theslide tral perforation 20, coune reception of o a disk 23, w aid slide so t hereby said hat the one. In orderto d" relieve the as much as possible, the slide with a circular rub 24,,while the disk 2 corresponding socket fo still further relieve. the screw provided lwithf whichproject t projectingfro c Instead of se ach'ofthe 111 used, if. desire d.. P a i. .1e, tdisk-2 3.is aha which is; adapted toe pe iph t sli e--1 i t e posit on own disk 23 a third disk] 31 i" by means of screws. 0

ped into ,the disk slots 3, formedthrou trically with its cen te disks is capableof. a relationv to e the: other; the concentricity of the vided with a circular bo other with a correspond it. Formed upon the o .31 and extendi 'enlargementB bore and forming spindle 36, which enlargement or shoulder the upper end of the soc y The spindle ca k3 8 for supportin is to be operated upon. scouted to a spindl motion is im able means. conform of the a shape of the article an operation to be perform ing variations in the c a are preferably a by screw-threads or ot will enable their read Theyoperationof'tl Assuming the parts t ng the treadle-rod l7 dow to lever 15, carrying the pward, carrying with it arts attached thereto,

projection or 3is provided with a reception. To. the slide 18 is a peripheral groove. 25, into 0ngues 26, secured in the. periphery- 9ft gues, one seemed. to ontinuous ring may be. eating from-one side of e28; earryinga dog 29,. gage a vnotch 30 in li he t rhol ns eidi fullllines. .Tolthe I v e treadle rod andtliepartsflrop" down tothet ri'holts 32,; which are:- positionshownby fnllrlinest .-The;do2 29 is ssfed through, disk .3i,.concenr, ;wher,eby.one.:of. said rotary adjustment with In order: to preserve, two disks, one is prose or hub 34= and the. ing recessto receive uter face of the disk etrically acrossit is an t a. cylindrical bearing fora; provided'with an 37, that bears upon ket and sustains the tries at its upper end 1 g the article 39 that. Thetool is shownat' 41, to which rotary y convenient or suit-- buck and tool must e'exactness to the. size. rated upon, and as the d the character of the quire correspond meter of these parts, d to their spindles e means that rovidedtwith. the socketpr p e by an with reasonabl rticle tobe ope is as follows;

the 'slidejl8 Y the movement of said parts being directed by the guide 10. e margin of {the article 39 will come in contact -with-the annular groove of the revolving 1500140, (see Fig. 4,) and as the two a are pressed together thesaid margin will be curled over, forming "the round head or roll known as a false;wire Bycontinuing the present-ea roll v0t more than one complete turn may be m'adeL The tool has contact with onlya small portion-of thefentire circumt'erence. of the article ata time; but the friction between them will :cause the article to partake of the rotary motion of the tool, (the chuck turning, also,) so that all parts of lts circumference come under the 'action of the tool. The angle 'of divergenceof the planes of the tool and upper margin of the.

article-may be greater or less thanshown in the drawings, the essential requisite: .being that the point of contact beshoru- It will be seen that, as shown by-Fig; 1,-the margin of I the article will come-in contact with-the;out=- side edge of the groove infthe tool, and con lsequentlyv the metal will be curled inward,

If the head is to be on the outside, the marmaking ahead onthe, inside. of the articlc.'.=

gin of' the article should belbrought in. con

tact with -tlie inneitedge .of i the grooveytas shown by f: LA s Soonastlreoperatien is;

completed 1' pressure ,is-gremo cdg front. the.-' 1

then withdrawn from 1 engagement- =witlr the too notch 30'audthe lever 28 isdepressed, carry;- ing the disk 23. and theattached parts tot-he position shown by dotted lines. ;-:Wh-en theparts arein these positions,tthefinished art-i cleymaybe removed from the' chuck :and an unfinished one put-in its place. Thehandle is then returned .to its normal position, as l shown by-full'lines, and the operation repeate bodies but the posit1ons ofthe parts are not the samein both figures each beingadjusted to perform certain operations-Ahab is, in

one at the figuresshewsthe machinearrang'ed for operating upon an article having a conical body and the other shows it arranged for op.-

erating on an articlehaving a-cylindric'al,

body the two figures do not show the guide. in exactly the same position with relation to,

otherlparts'. Furthermore, both do not show. theis'pindle of the chuck in exactly the same position with relation to the guide.- The figures differ, also, in that Fig. lshows the parts.

in their lower'mostpositionandthe toolout contact.

of contact with the article; while Fig. 4shov7i the parts elevated and the tool and article in s bear at their opposite'ends against said lugs 'We desire to have it, understoodthat while we prefer the constrnetionshown in the drawings still our invention is not necessarily limited thereto. 1

Among the many possible changes that might be made without departing from our invention are the following: Instead of moving the article toward and from the tool, the

tool-may be moved toward and from the arti-- cle, the tilting disk 23 and its accessories may be dispensed with-if the tool and chuck are moved a sufficient distance apart, the shape ofthe chuck may be changed to meet the requirements of particular cases, the tool may Fig. 1 is shown, exceptthat its upper part is cylindrical on the exterior, as shown'at id' Surrounding this cylindrical portion is a ring 1 46, into which bolts t7 are tapped at suitable intervals, said bolts being passed loosely through lugs 48 on the exterior of the chuck and surrounded by coiled springs 50, that a'nd'the under side of the ring, whereby the latter is held normallyelevated. The top in-.

v ner corner of the ring is provided withahalfround groove in which rests thewire 51, that has been formed into a ring and is to have I the metal rolled around it. The article projects slightly above the ring and when acted upon by the tool as already described curls over the wire and completely envelops it, the

springs 50'allowing the ring to be depressed by the curling metal.

We are aware that it is not new to use a tool consisting of a roller having a working surface on its periphery and to revolve the article in order to bring all parts of its circumference under the action of the tool, the axis of the tool being inclined with respect to the axis of the article. This, however, is not the equivalent of a rotary tool consisting of adisk havingaworking surface on one of its fiat sides, said working surface and the margin of the article being presented .to each other in planes that converge. So far as We are aware, we the first to use a rotary tool having a flatworkin g surface-that is, a'working surface that is locatedon one of the flat sides of a disk instead of on'the periphery thereof. We do not mean by this that the working surface of the tool is without eleva-' tions or depressions, for it may have either or both; but.we mean simply that it is arranged on a fiat surface instead of on a cylindrical surface. 1

\Ve are also aware that a tool for closing cartridges has been constructed of a central hub adapted to be secured to a spindle, a number of arms radiating therefrom and having their working faces rounded-off, and a ring or rim supported by said arms concentric with the hub for centering the shell, and we do not claim such as our invention. Where the margin of the article converges with the working surface of the tool, it is necessary that said working surface be continuous, or practically so.- I

What we claim as new, and desire to secure by Letters Patent, is

1. The method of treating sheet-metalarticles, which consists in forcing the margin of the article into contact with a tool consisting of a disk having a working surface on one of its fiat sides, maintaining the margin of the article and the working surface of the tool in planes that converge so that only a small portion of the circumference of the article has contact with the tool at any one time, and successively bringing all parts of said circumference under the action of the tool, substantially as set forth.

2. The method of treating sheet-metal articles, which consists in presenting the margin of the article to the flat working surface of a revolving tool, maintaining said article in a plane that converges with the plane of the working surface of the, tool, so that only a small portion of the circumference of the article has contact with thetool atany one time,

forcing them together by pressure applied in I a plane parallel with the side of the article that is for the time being in contact with the tool, and successively bringing all parts of the circumference of the article under the action of the tool.

3. The-combination of a tool consisting of a disk having a working surface on one of its fiat sides, a rotary chuck for holding the'article, and means for pressing the margin of the article against the fiat face of the too], the axes of the tool and chuck being inclined with relation to each other, so as to maintain the tool and the margin of the article in converging planes, substantially as set forth.

7 4.'The combination of a rotary chuck for holding the article, a tool consisting of a rotary disk having a working surface on one of its flat sides, the axis of said tool being situated within the circumference of the margin of the article and at an angle to the axis of the chuck, and means for forcing the margin of the article against the face of the tool,

substantially as set forth.

5. The combination of a revoluble tool consisting of a disk having a half-round annular groove in one of its flat sides, a chuck for holding the margin of the article in a plane that converges with the plane of the working surface of the tool, and means for forcing the article and tool together, substantially as set forth;

6. The combination, with atool,of achuck,

a spindle by which it is supported, a plate adjustable about an axis perpendicular to said spindle, a fixed bearing for said. spindle carried by said plate, and means for securing said plate so as to hold the parts in the positions to which they are adjusted, substantially as set forth.

7. The combinatiomwith a tool, of achuck,

IIO

r. naled and by which it is held against lateral V movement relatively thereto, and means for a spindle bywhioh it is carried,a tilting plate having a socket in which said spindle is jourtilting the plate, substantially as setforth. a '8. The combination,with atool, ofachuck,

. the tilting plate 23, supporting said chuck, a hand-lever for moving said plate, and a dog for looking it in position, substantially as set forth. V 9. The combination, with a tool and a chuck, of a tilting plate 23, a handle for operating it,

a plate31, supporting the chuck, and means adjustably connecting the twoplates, substantially as set forth.

10. The combination, with a rotary'tool and r a chuck'having axes inclined with relation to each other, of a slide carrying said chuck and a guide for compelling said slide to move in a plane parallel with the side of thearticle that is for the time being incontact with the tool,

' substantially as set forth.

1-1. The combination, with a rotary tool and a a chuck having axes inclined with relation to a guide for said slide adjustable to difierent each other, of aslide carrying said chuck and angles with respectto the tool, substantially as set.forth. j I 12. The combination, with altool andi'a.

chuck, of a slide, means for adjustably connecting the chuck thereto, and an adj nstable,

guide for said slide, substantially as set forth. 13. The combinatiomwith a tool and a chuck, of the slide 18, the adjustable guide 10,upon which it works, the plate 31, carry-- ing the chuck, and means for adj ustably connecting'the plate 31 and slide 18, substantially asset forth.

14. The combination of to the slide and having the handle 28, the dog 29,- the plate 31, secured. adjustablytq plate 23 and having the socket 35, the spindle 36,

occupying said socket, the chuck 38, carried by said spindle, and the tool, all constructed Jandharrangedto, operate substantially as set ort i 15. The combination, with the chuck having lugs 48, of the ring 46,surroundi'ng the chuck near its top, the bolts 47, loosely connecting the ring and lugs, and the-'springsfiO,

' sur'rdunding'the bolts and bearing in oppothe guide 10, the

' slide 18, fitting thereon,the plate 23, swiveled 4o 

